Global Patent Index - EP 3259300 A1

EP 3259300 A1 20171227 - METHOD FOR PRODUCING POLYCARBONATES BY TRANSESTERIFICATION OF DITHIOCARBONATES OR THE SELENIUM ANALOGUES THEREOF WITH BISPHENOLS

Title (en)

METHOD FOR PRODUCING POLYCARBONATES BY TRANSESTERIFICATION OF DITHIOCARBONATES OR THE SELENIUM ANALOGUES THEREOF WITH BISPHENOLS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON POLYCARBONATEN DURCH DIE UMESTERUNG VON DITHIOCARBONATEN ODER DEREN SELEN-ANALOGA MIT BISPHENOLEN

Title (fr)

PROCÉDÉ DE PRODUCTION DE POLYCARBONATES PAR TRANSESTÉRIFICATION DE DITHIOCARBONATES OU D'ANALOGUES DE SÉLÉNIUM DE CEUX-CI AVEC DES BISPHÉNOLS

Publication

EP 3259300 A1 20171227 (DE)

Application

EP 16704241 A 20160215

Priority

  • EP 15155655 A 20150218
  • EP 2016053113 W 20160215

Abstract (en)

[origin: WO2016131747A1] The present invention relates to a method for producing aromatic polycarbonates, comprising the step of reacting bisphenols with dithiocarbonates or the selenium analogues thereof in the presence of a catalyst. The invention also relates to the use of dithiocarbonates or the selenium analogues thereof as transesterification reagents for the production of polycarbonates.

IPC 8 full level

C08G 64/38 (2006.01)

CPC (source: CN EP US)

B01J 27/0573 (2013.01 - US); C08G 64/205 (2013.01 - US); C08G 64/38 (2013.01 - CN EP US); C08K 5/38 (2013.01 - US); B01J 2219/00051 (2013.01 - US); B01J 2219/00162 (2013.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2016131747 A1 20160825; CN 107223145 A 20170929; CN 107223145 B 20201002; EP 3259300 A1 20171227; EP 3259300 B1 20200909; JP 2018507299 A 20180315; JP 6755877 B2 20200916; KR 20170118731 A 20171025; TW 201700531 A 20170101; US 10167364 B2 20190101; US 2018037697 A1 20180208

DOCDB simple family (application)

EP 2016053113 W 20160215; CN 201680010722 A 20160215; EP 16704241 A 20160215; JP 2017543771 A 20160215; KR 20177022697 A 20160215; TW 105104398 A 20160216; US 201615552219 A 20160215